SDR UPS01235785

Service difficulty report · Warning System · Boeing 72751C

Difficulty date: May 2, 2001
Submitted: May 4, 2001
Operation: Air carrier
Aircraft: N904UP
Make and model: Boeing 72751C
Aircraft serial: 18946
System (JASC): 2610 · Detection System
Part: Warning System
Condition: Inoperative
Location: Cockpit
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

COMPT SHOWS-TD DELAY FOR FIRE WARNING BELL INDICATOR INOP COCKPIT FIRE BELL WILL NOT SOUND WITH THE ENG FIRE DETECTION PANEL TEST SWITCH IN A,B,OR A/B THIS APPLIES TO ACTUATING EITHER THE ENG TEST SWITCH OR WHEEL WELL TEST SWITCH. CLEANED AND RESECURED WIRING AT TB 224 56 AND 57. TEST VOLTAGE, OK SYSTEM OK PER 26-11-02.

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